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MOSFIRE Status Update
Bob Weber
27 January 2010
COO All-Hands Meeting
MOSFIRE Overview
• Multi-Object Spectrometer for Infra-Red
Exploration
• CIT, UCLA, UCSC, Keck collaboration
• NIR multi-object spectroscopy over 6.1’ x 6.1’
FOV; up to 46 objects simultaneously
• Wavelength coverage: 0.9-2.5 µm (Y, J , H & K)
• Commissioning: Keck 1 Cass by end of 2010
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27 January 2010
Recent Progress Summary
• 3rd cool down completed successfully
– Cold alignment confirmed
– Installed mechanisms (FCS, Grating Turret, Pupil Mechanism,
CSU) operated successfully in all gravity orientations
• All science optics successfully mounted &
aligned
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All lenses aligned & bonded into cells (except field flattener)
Camera barrel assembled
Collimator barrel ready to be assembled
Science flats aligned & bonded
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27 January 2010
MOSFIRE Cold Alignment Check
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27 January 2010
MOSFIRE Mechanisms
CSU during bench tests
Grating Turret installation
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27 January 2010
Lens Mounting
Camera Lens #4 Installed
Camera Barrel Assembled
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27 January 2010
Current Activities
• 4th cool down preparations
– Re-check cold alignment w/ science flats
– More mechanism tests
• Detector head cold tests
– Focus mechanism tests (cold @ UCLA)
– Install detector
– Field flattener installation
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27 January 2010
Current Activities (Cont.)
• Filter wheel cold tests
– Wheel detent design modifications necessary
– Cold tests in test chamber before 5th cool
down
• Guider assembly & alignment check
– Assemble to front end cap
– CMM metrology & adjustment
– Alignment check w.r.t. instrument axis during
4th cool down
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27 January 2010
Platform & Hexapod structures for
alignment checks
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27 January 2010
Looking Forward
• 5th cool down (late March)
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Install all optics
Install all remaining mechanisms
Install science detector
Optical tests
• 6th cool down (May)
– Flexure mapping
• 7th cool down (late June)
– Acceptance tests?
• Pack & Ship (July-August?)
• Commissioning (September?)
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27 January 2010
IRMS
InfraRed MultiSlit
Spectrometer for TMT
Bob Weber
27 January 2010
COO All-Hands Meeting
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27 January 2010
Overview
• IRMS is envisioned as “clone” of
MOSFIRE
• Fed by NFIRAOS
• Three modifications required for TMT:
– Alter mounting to attach to NFIRAOS
– Alter field lens prescription for TMT
– Alter guider system to OIWFS (on instrument
wave front sensing)
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27 January 2010
Current Status
• TMT preparing SOW for Conceptual
Design Study
• Design study period: (late 2010 thru early
2011)
• UC Riverside is the design study lead
• COO’s contribution (~$100K):
– Design & cost required modifications to
MOSFIRE
– Develop schedule & cost to completion
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27 January 2010
COO’s Future in IRMS?
• The IRMS team remains undefined
• This is substantially a fabrication, procurement,
and I&T project. To keep IRMS costs minimal,
we have suggested that:
– COO participates in project engineering/management
– Mechanical re-design done by COO
– I&T tasks should be done at CIT (infrastructure &
experience exist)
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27 January 2010